Rejected by my own (Being Edited)

Alyssa parents died when she was little and her brother Dylan blamed her for it so he used his authority in the pack as future beta and told everyone that they were supposed to treat her like the runt of her pack. After that nothing was the same she was bullied by everyone at school and most of the adults, she was forced to do mostly everyones chores and homework and even cook fo them. But she knew that on her sixteen birthday she would most likley find her mate the one person that is supposed to love her and that he will take her away from the hell that she is living in.But when her mate Michael the future alpha rejects her she can't stay there anymore with her brother blaming her for her parents death and everyone hating her plus her mate rejecting her she leaves. But what happens when she meets another alpha male who says that she is his mate. Or when she finds out who she really is in reality instead of who she was believed she was or as long as she could remember